Suggest me books on Java concept.

I'm seeking for java2 certification. I downloaded ucertify product. Question are on right quality. 150 challenging practice questions have been included to closely model the format, tone, topics, and difficulty of the real exam. If i purchased it before release then i could have able to got 40% discount. Test simulation is good but i want few good books and study guide also. Suggest me in this regard.

For the java2 certification, you CAN'T just choose any old book. You would be suprised at the amount of stuff that regular books don't teach you. I had read about 3 or 4 java books, and tons of tutorials and once I started reading that certification prep book, I felt VERY stupid.

The book by Sierra and Bates is excellent. After an official Sun training course (which you might think overly expensive at this point :) ) I used it exclusively (besides tons of realworld experience).

It's the book most used, many people that fail the exam admit to using something else instead ;)

Write a C program that should create a 10 element array of random integers (0 to 9). The program should total all of the numbers in the odd positions of the array and compare them with the total of the numbers in the even positions of the array and indicate ...

I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...